Cambridge A Level Applied Information and Communication Technology 9713 — 2009 Oct/Nov Paper 3 · Variant 1

This document consists of 15 printed pages and 1 blank page. IB09 11_9713_03/5RP © UCLES 2009 [Turn over *8286813828* UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level APPLIED INFORMATION AND COMMUNICATION TECHNOLOGY 9713/03 Paper 3 October/November 2009 1 hour 15 minutes Candidates answer on the Question Paper. No additional materials are required READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. Do not use staples, paper clips, highlighters, glue or correction fluid. You may use a pencil for any diagrams, graphs or rough working. DO NOT WRITE IN ANY BARCODES Answer all questions. The number of marks is given in brackets [ ] at the end of each question or part question. The businesses described in this paper are entirely fictitious.

2 © UCLES 2009 9713/03/O/N/09 Scenario 1 Questions 1 to 3 Daniel has bought a portable media player. He has also bought some other computer equipment to help him run his small company, which makes and sells pottery. He uses software to produce his website, which includes photographs of his items for sale. He needs to use the software to produce advertising literature. Daniel uses the internet to: • maintain his accounts • advertise and sell his goods • keep in contact with his customers.

3 © UCLES 2009 9713/03/O/N/09 [Turn over For Examiner's Use 1 (a) The portable media player allows the recording of music. Explain how it is possible to store many thousands of songs on a 160 gigabyte media player. [3] (b) It has been predicted that music CDs and movie DVDs will be phased out by 2015. Describe the technological developments which have led to this prediction. [4]

4 © UCLES 2009 9713/03/O/N/09 For Examiner's Use (c) Daniel also has a home entertainment system. His television receives digital rather than analogue signals. (i) Describe the advantages and disadvantages of a digital system when compared to an analogue system. [4] (ii) Describe the hardware which is used to receive digital signals rather than analogue signals. [2]

5 © UCLES 2009 9713/03/O/N/09 [Turn over For Examiner's Use 2 (a) Daniel is concerned about the security of his website. Describe how the website can be made more secure. [6] (b) Describe ways in which Daniel can keep in contact with his customers using the internet. [3]

6 © UCLES 2009 9713/03/O/N/09 For Examiner's Use (c) Describe how Daniel could develop pages on his website to show his customers images of his goods. [4] (d) An invoice is sent out with each item sold. Three part stationery is used. Name a suitable output device and explain why this has been chosen to output these invoices. [2]

7 © UCLES 2009 9713/03/O/N/09 [Turn over For Examiner's Use 3 (a) Daniel’s computer uses wireless network technologies. Describe the advantages of using these compared to wired connections. [2] (b) Describe the health and safety risks to Daniel of using his computer system. [4]

8 © UCLES 2009 9713/03/O/N/09 Scenario 2 Questions 4 to 6 MarquesAir is an airline that sells tickets for its flights on the internet. MarquesAir train their pilots using flight simulators. The simulation seems very real to the pilots. They are able to assess their ability and also receive immediate feedback on any errors in their technique. The company uses an expert system to do their financial planning.

9 © UCLES 2009 9713/03/O/N/09 [Turn over For Examiner's Use 4 MarquesAir produces electronic tickets rather than printed tickets. (a) Describe the advantages to the airline company and the customers of electronic tickets. [4] (b) Describe how it is possible to stop two people from using the same electronic ticket. [2] (c) Explain the impact on society of electronic ticketing. [4]

10 © UCLES 2009 9713/03/O/N/09 For Examiner's Use 5 (a) Describe the advantages of training pilots on a flight simulator. [3] (b) Describe how the computer hardware and the pilot interact with each other to make the simulator function effectively. [6]

11 © UCLES 2009 9713/03/O/N/09 [Turn over For Examiner's Use 6 Describe how the expert system is used to carry out financial planning. [5]

12 © UCLES 2009 9713/03/O/N/09 Scenario 3 Questions 7 to 9 Suitikal is a large company which manufactures drugs. The company has decided to use market research to determine the best packaging for their products. Suitikal is an international company which uses video conferencing to keep in touch with staff and customers around the world. To enable them to improve efficiency, the company has employed a systems analyst to improve their existing systems.

13 © UCLES 2009 9713/03/O/N/09 [Turn over For Examiner's Use 7 Describe the stages of systems analysis which the analyst will follow. [7]

14 © UCLES 2009 9713/03/O/N/09 For Examiner's Use 8 (a) Describe how market research helps Suitikal design the packaging for a new product. [4] (b) Describe how computer systems in the laboratory help the company to develop and test a new drug. [4]

15 © UCLES 2009 9713/03/O/N/09 For Examiner's Use 9 Describe the hardware and software requirements of Suitikal’s video conferencing system. [7]

16 Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge. 9713/03/O/N/09 For Examiner's Use BLANK PAGE

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Advanced Subsidiary Level and GCE Advanced Level MARK SCHEME for the October/November 2009 question paper for the guidance of teachers 9713 APPLIED ICT 9713/03 Paper 3 (Written B), maximum raw mark 80 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the October/November 2009 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses.

Page 2 Mark Scheme: Teachers’ version Syllabus Paper GCE A/AS LEVEL – October/November 2009 9713 03 © UCLES 2009 1 (a) Any three points from: files are compressed MP3 file is 1/10th the size of a normal “song” file developments in CODECs removes high frequency information however: higher the bit rate, larger the file, less can be stored but music quality is better more compression results in lower quality sound [3] (b) Any four from: possible to download files from the Internet much more material on the Internet torrent type of usage more prevalent MP3/4 players/flash memory cards are more available/have larger capacities/cheaper hard disk storage video on demand being promoted by service providers Blue ray technology with more information/higher quality MP3/I-Pod docking stations have replaced CD players combined mobile phone/MP3/movie players [4] (c) (i) Any four points from (max 3 advantages and 3 disadvantages): advantages more programmes available not as affected by atmospheric conditions high definition sound/picture better format for compression better quality recordings possible more sophisticated programme guide disadvantages can break up (pixelate) if signal is interrupted time lag requires special electronic decoders hardware can be more expensive [4] (ii) Any two points from: use of satellite dishes rather than an aerial high speed cable to UBR/service LNB to reduce received frequencies need for digital receiver/decoders connected to TV [2]

Page 3 Mark Scheme: Teachers’ version Syllabus Paper GCE A/AS LEVEL – October/November 2009 9713 03 © UCLES 2009 2 (a) One mark for each problem (max of 3) and one mark for each solution (max of 3): problems computer fraud money taken from Daniel’s accounts stolen customer ids fraudulent orders placed by hackers viruses/trojan inserted into web site hacking into systems deleting/amending and distributing personal data “spyware” on computer system tracking sites logging customer interests solution locked rooms/physical security firewalls configured to prevent unauthorised access digital certification for transactions encryption of customer data transferred anti-virus software kept up to date user ids and passwords anti-pop up software anti-spyware software monitoring web traffic authentication techniques [6] (b) Any three points from: use of emails and attachments use of web forms on his website to answer queries on line chatting/instant messaging/webcams for a webcast/forum use of VoIP technology mail merge email newsletter Daniel maintains a blog/twitter site [3] (c) Use of any four of the following: use of scanners to import images of his products use of digital cameras to take photographs of his products web authoring packages to create his web site DTP/word processors to create text photo image editing of images for the web site use thumbnails to link to full sized image/fit a number of images on one page use of library of designs use of clip art to save time photo galleries to save time [4] (d) One mark for device and one mark for reason: dot matrix printer this uses physical pressure/impact impact printer goes through several pages [2]

Page 4 Mark Scheme: Teachers’ version Syllabus Paper GCE A/AS LEVEL – October/November 2009 9713 03 © UCLES 2009 3 (a) Any two points from: can work anywhere in the building more convenient mode of working safer – no trailing wires can use away from home – e.g. airports less expensive way to set up a LAN [2] (b) Any four points from: an increase in RSI risk due to long hours on computer vision and posture problems/back ache due to incorrect use of system electrocution risk with mains leads concerns with long term exposure to wifi fire risks due to laptop overheating trip hazards due to any cables/bag [4] 4 (a) Any four (3 maximum for each) points from: Company: reduces (booking) expenses: no need to print out tickets no need for postage do not so many offices/staff to issue tickets eliminates loss of important documents can’t be lost, stolen or mislaid Customer: simplifies and speeds up check-in at airports easier to buy tickets and arrange seat simpler for passengers – all that is required is a form of id [4] (b) Any two points from: security features when ticket issued e.g. customer must provide passport number need proof of ID (e.g. passport) need to provide customer details when using e-ticket e.g. customer last name [2] (c) Any four points from: unemployment for clerical workers new employment in technical work shorter working times/more flexible working for staff less time spent queuing at check-in/buying tickets no need to wait for tickets to arrive less time spent in the process of checking in e-tickets have encouraged more travellers benefiting certain societies/countries increases digital divide as customers need Internet access [4]

Page 5 Mark Scheme: Teachers’ version Syllabus Paper GCE A/AS LEVEL – October/November 2009 9713 03 © UCLES 2009 5 (a) Any three points from: safer than flying the real thing can try out manoeuvres without risk can try out various scenarios to see how the pilot reacts pilot can be automatically assessed less expensive to run once set up a scenario can be repeated as often as required [3] (b) Any six points from: pilot makes changes to controls sensors give feedback to system information from sensors is compared to stored data computer sends signals to motors to change position etc. use of ADC and DAC interfaces system sounds warning sounds/buzzers system updates displays for pilot automatically records data during training [6] 6 Any five points from: system asks questions user responds with answers future questions are dependent on answers received searches the knowledge base to find a match with input using the inference engine to match… according to rules base most likely outcome is given … … with % accuracy/probability [5] 7 Any seven points from (each point needs expansion and reference to scenario, rather than generic responses, to gain the mark) analysis research similar systems, establish I/O, look at existing system, observation/questionnaires/ interviews of users/managers design hardware and software specification for this situation, I/O layouts, establish suitable validation rules, create suitable file structures developing create data structures, amend structures and program modules in light of testing testing test each module with normal/live data, test each module with abnormal and extreme data, test system with all modules connected implementation parallel runs, direct changeover, phased implementation, pilot run documentation technical documentation (test plans and runs, purpose, listings, flowcharts, etc.) and user documentation (guide to software and hardware that makes up the system) evaluation evaluate system with regards to efficiency, evaluate system with regards to ease of use, compare to user requirements etc. [7]

Page 6 Mark Scheme: Teachers’ version Syllabus Paper GCE A/AS LEVEL – October/November 2009 9713 03 © UCLES 2009 8 (a) Any four points from: send out questionnaires/surveys to target groups carry out personal interviewing carry out telephone surveys web sites – ask views and collect information on line store all the information on a database … … and later analyse the information produce a report showing results of surveys [4] (b) Any four from: previous results of research stored … … can cross match results and save time and money results from tests on certain drugs stored avoids need to repeat expensive tests can predict likely outcome of doing certain tests on drugs computer can automatically control and monitor mixing of ingredients computer model can be used to predict effects of new drug storage of analytical results/can check analysis against criteria do statistical analysis of results [4] 9 Any seven points described from: webcams to capture images microphones and loudspeakers to hear others large computer screens to see captured images high speed internet connections/routers for data transmission high speed processor to produce good quality images/smoother motion compression software to reduce data transmitted communications software to establish link between sites/protocol sometimes sound/picture quality not good due to delay in signals requirement for high bandwidth to avoid video breakup time difference can be a problem link to server using password and ID software to cover security issues (hacking, etc.) [7]